Kahtoola NANOspikes Footwear Traction Red Extra Small. Ten extremely wear-resistant tungsten carbide spikes per foot bite into frozen surfaces and highly durable dual-compound TPU traction plates feature specialized inserts that disburse impact forces. NANOspikes also allow users to safely transition between dry and slippery pavement without affecting the natural running motion providing the high performance road runners demand so they can train and stay outside all year round. Specifications for Kahtoola NANOspikes Footwear Traction: Manufacturer: Kahtoola Activity: Alpine Climbing Fabric/Material: Tungsten Carbide Weight: 8 oz Age Group: Adults Gender: Unisex FEATURE CALLOUT 10 tungsten carbide spikes Flexible plates disperse impact forces on the foot Ergonomically shaped harness with reinforced eyelets Integrated toe bail for added security Raised heel tab for easy on/off Includes tote sack Features of Kahtoola NANOspikes Footwear Traction: Ten Tungsten Carbide Spikes - Strategically placed tungsten-carbide spikes provide a stable platform resist wear on hard surfaces and are integrated into flexible plates that disperse impact forces on the foot. Ergonomically Shaped Thermoplastic Elastomer (TPE) Harness - Features reinforced eyelets for increased durability is ergonomically shaped to allow for a very low-profile fit and retains its elasticity down to -22 F (-30 C). Toe Bail - Keeps the toe from pushing through the front of the harness for added security while descending. Raised Heel Tab - Provides a secure grip point on the harness for easy on and off in frozen winter conditions with cold or gloved hands. Package Contents: Kahtoola NANOspikes Footwear Traction Kahtoola KT05015: NANOspikes Footwear Traction Black Extra Small Kahtoola KT05009: NANOspikes Footwear Traction Red Large Kahtoola KT05002: NANOspikes Footwear Traction Charcoal Small Kahtoola KT05003: NANOspikes Footwear Traction Charcoal Medium Kahtoola KT05010: NANOspikes Footwear Traction Red Extra Large Kahtoola KT05004: NANOspikes Footwear Traction Charcoal Large Kahtoola KT05005: NANOspikes Footwear Traction Charcoal Extra Large Kahtoola KT05008: NANOspikes Footwear Traction Red Medium Kahtoola KT05007: NANOspikes Footwear Traction Red Small Kahtoola KT05001: NANOspikes Footwear Traction Charcoal Extra Small Kahtoola KT05006: NANOspikes Footwear Traction Red Extra Small Kahtoola KT05019: NANOspikes Footwear Traction Black Extra Large Kahtoola KT05006: NANOspikes Footwear Traction Red Extra Small